Hard/expensive enough to get home insurance offgrid with lead Acid. I can
imagine the policy for used car batteries in the garage :)
It might reach the do-it yourself experimenters though. They are fearless
in their remote power buildings on U-tube. --Dave
Dave
> Form my vantage pointâ¦.
>
> Whet
Form my vantage point….
Whether UL is involved in the re-purposing of Lithium Ion batteries or not,
this will not reach to the DIY market for used batteries. With all the interest
in saving money and the growing availability of wrecked EV's with good battery
packs, this DIY battery issue is see
Funny because none of the Lead acid batteries we've used off grid all
these years are UL listed.
Ray Walters
On 10/19/17 3:28 PM, Dave Angelini Offgrid Solar wrote:
They need a bit more than UL to move them around and for fire if a
home/commercial also.. --Dave
Reliability & Certification
S
They need a bit more than UL to move them around and for fire if a
home/commercial also.. --Dave
Reliability & Certification
Safety
Cell
UL1642
Battery Pack
CE / RCM / FCC / TUV (IEC 62619) / UL1973
Hazardous Materials Classification
Class 9
Transportation
UN38.3 (UNDOT)
Ingress Rating
IP55
Dav
Hello Wrenches,
Here is feedback on the second life batteries
from Morgan Hager, member of the group who will
be working on the project. I sent her the
information provided by the list, and asked for
more information. Below is her reply.
*
I appreciate the feedback. I have put in a
request for more information to the project
organizer to see what methods he is planning to
use, and what type of battery is to be recycled.
The dangers expressed are pretty alarming. If I
am to be involved in this project, solid planning
and safety
As has been said, and very well again by Larry, one needs to know exactly
what type of Lion chemistry they are dealing with.
Probably the best place to learn at this time is automotive electric car
hobbyist or the offgrid Prismatic battery folks.
It took me a year to learn enough about the LG Che
If you are going to play without knowledge, never have these battery cells near
anything you are not willing to loose to fire. Worst case is you burn something
that you did not intend to. Might be something cheap or your home and all your
possessions or your eyes and skin. If that happens, don’t
Those are great arc-flash photos. Are we really
getting into a serious risk of this sort of
situation with a Li-ion battery? What really
happens in a worst-case-scenario situation with
them? How many people have blown themselves up to date? :-)
Thanks,
Drake
At 01:16 PM 10/5/2017, you wrote
Youtube.com will make you a genius or a smoking idiot!
Move forward with caution and remember all shortcuts lead to the Emergency
Room.
A good Google page for Arc flash!
https://www.google.com/search?q=arc+flash&tbm=isch&source=iu&pf=m&ictx=1&tbs=simg:CAES0QEJ24TjFZ8ovAYaxQELEKjU2AQaAggKDAsQsI
Hi Drake,
What chemistry of li-ion batteries are you talking about? Some, like LiFePO4,
are far less prone to thermal runaway as they have superior thermal
characteristics. Other chemistries should be avoided unless you have
significant cell level monitoring and control.
As with all batteries
I would tell them that there are different types of Li-ion and many are
not made to be "repurposed" and should be re-cycled.
Many are not safe in the home and I certainly would not want my name on
anything crazy, like this sounds.
To do this the BMS needs to be recalibrated for cycled bateries. I
Thermal Runaway is caused by part of a cell or cells being warmer than
other cells as the cell warms is to voltage drops and the other cells power
into that cell or can be caused by a failure of that cell usually a failure
of a Cell results in a fuse being blown fusible link being blowing a good
wa
Hello Wrenches,
I've been contacted by a group who will be taking apart lithium ion
battery packs that have been retired, finding the bad cells and
recombining the remainder, then putting them in larger configurations
for use in PV systems and electric vehicles.
How can thermal runaway be av
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